An APSB Riding Pony is defined as:1. APSB Pony registered in the purebred or Foundation sections of the Stud Book crossed with a pony registered as Section A Riding Pony with the RPSA. 2. APSB Riding Pony crossed with a pony registered as Section A Riding Pony with the RPSA. 3. Breeding Guidelines will not allow more than two consecutive crosses of a Section A Riding Pony registered with the RPSA. 4. APSB Riding Pony crossed with an APSB Riding Pony. 5. APSB Pony registered in the purebred or Foundation sections of the Stud Book crossed with an APSB Riding Pony 6. APSB Riding Ponies and APSB ponies registered in the purebred or Foundations sections of the Stud Book may be crossed as often as the breeder chooses. 7. The height of the APSB Riding Pony must not exceed 14.2.h.h.